src/switchmenu.c

   1 /*
   2  *  Window Maker window manager
   3  *
   4  *  Copyright (c) 1997      Shige Abe
   5  *  Copyright (c) 1997-2003 Alfredo K. Kojima
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License along
  18  *  with this program; if not, write to the Free Software Foundation, Inc.,
  19  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "wconfig.h"
  23
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <stdint.h>
  28
  29 #include <X11/Xlib.h>
  30 #include <X11/Xutil.h>
  31
  32 #include "WindowMaker.h"
  33 #include "window.h"
  34 #include "actions.h"
  35 #include "client.h"
  36 #include "misc.h"
  37 #include "stacking.h"
  38 #include "workspace.h"
  39 #include "framewin.h"
  40 #include "switchmenu.h"
  41
  42 #define IS_GNUSTEP_MENU(w) ((w)->wm_gnustep_attr && \
  43         ((w)->wm_gnustep_attr->flags & GSWindowLevelAttr) && \
  44         ((w)->wm_gnustep_attr->window_level == WMMainMenuWindowLevel || \
  45          (w)->wm_gnustep_attr->window_level == WMSubmenuWindowLevel))
  46
  47 static int initialized = 0;
  48 static void observer(void *self, WMNotification * notif);
  49 static void wsobserver(void *self, WMNotification * notif);
  50
  51 /*
  52  * FocusWindow
  53  *
  54  *  - Needs to check if already in the right workspace before
  55  *    calling wChangeWorkspace?
  56  *
  57  *  Order:
  58  *    Switch to correct workspace
  59  *    Unshade if shaded
  60  *    If iconified then deiconify else focus/raise.
  61  */
  62 static void focusWindow(WMenu * menu, WMenuEntry * entry)
  63 {
  64         WWindow *wwin;
  65
  66         /* Parameter not used, but tell the compiler that it is ok */
  67         (void) menu;
  68
  69         wwin = (WWindow *) entry->clientdata;
  70         wWindowSingleFocus(wwin);
  71 }
  72
  73 void InitializeSwitchMenu(void)
  74 {
  75         if (!initialized) {
  76                 initialized = 1;
  77
  78                 WMAddNotificationObserver(observer, NULL, WMNManaged, NULL);
  79                 WMAddNotificationObserver(observer, NULL, WMNUnmanaged, NULL);
  80                 WMAddNotificationObserver(observer, NULL, WMNChangedWorkspace, NULL);
  81                 WMAddNotificationObserver(observer, NULL, WMNChangedState, NULL);
  82                 WMAddNotificationObserver(observer, NULL, WMNChangedFocus, NULL);
  83                 WMAddNotificationObserver(observer, NULL, WMNChangedStacking, NULL);
  84                 WMAddNotificationObserver(observer, NULL, WMNChangedName, NULL);
  85
  86                 WMAddNotificationObserver(wsobserver, NULL, WMNWorkspaceChanged, NULL);
  87                 WMAddNotificationObserver(wsobserver, NULL, WMNWorkspaceNameChanged, NULL);
  88         }
  89 }
  90
  91 /*
  92  *
  93  * Open switch menu
  94  *
  95  */
  96 void OpenSwitchMenu(WScreen * scr, int x, int y, int keyboard)
  97 {
  98         WMenu *switchmenu = scr->switch_menu;
  99         WWindow *wwin;
 100
 101         if (switchmenu) {
 102                 if (switchmenu->flags.mapped) {
 103                         if (!switchmenu->flags.buttoned) {
 104                                 wMenuUnmap(switchmenu);
 105                         } else {
 106                                 wRaiseFrame(switchmenu->frame->core);
 107
 108                                 if (keyboard)
 109                                         wMenuMapAt(switchmenu, 0, 0, True);
 110                                 else
 111                                         wMenuMapCopyAt(switchmenu, x - switchmenu->frame->core->width / 2, y);
 112                         }
 113                 } else {
 114                         if (keyboard && x == scr->scr_width / 2 && y == scr->scr_height / 2) {
 115                                 y = y - switchmenu->frame->core->height / 2;
 116                         }
 117                         wMenuMapAt(switchmenu, x - switchmenu->frame->core->width / 2, y, keyboard);
 118                 }
 119                 return;
 120         }
 121         switchmenu = wMenuCreate(scr, _("Windows"), True);
 122         scr->switch_menu = switchmenu;
 123
 124         wwin = scr->focused_window;
 125         while (wwin) {
 126                 UpdateSwitchMenu(scr, wwin, ACTION_ADD);
 127
 128                 wwin = wwin->prev;
 129         }
 130
 131         if (switchmenu) {
 132                 int newx, newy;
 133
 134                 if (!switchmenu->flags.realized)
 135                         wMenuRealize(switchmenu);
 136
 137                 if (keyboard && x == 0 && y == 0) {
 138                         newx = newy = 0;
 139                 } else if (keyboard && x == scr->scr_width / 2 && y == scr->scr_height / 2) {
 140                         newx = x - switchmenu->frame->core->width / 2;
 141                         newy = y - switchmenu->frame->core->height / 2;
 142                 } else {
 143                         newx = x - switchmenu->frame->core->width / 2;
 144                         newy = y;
 145                 }
 146                 wMenuMapAt(switchmenu, newx, newy, keyboard);
 147         }
 148 }
 149
 150 static int menuIndexForWindow(WMenu * menu, WWindow * wwin, int old_pos)
 151 {
 152         int idx;
 153
 154         if (menu->entry_no <= old_pos)
 155                 return -1;
 156
 157 #define WS(i)  ((WWindow*)menu->entries[i]->clientdata)->frame->workspace
 158         if (old_pos >= 0) {
 159                 if (WS(old_pos) >= wwin->frame->workspace
 160                     && (old_pos == 0 || WS(old_pos - 1) <= wwin->frame->workspace)) {
 161                         return old_pos;
 162                 }
 163         }
 164 #undef WS
 165
 166         for (idx = 0; idx < menu->entry_no; idx++) {
 167                 WWindow *tw = (WWindow *) menu->entries[idx]->clientdata;
 168
 169                 if (!IS_OMNIPRESENT(tw)
 170                     && tw->frame->workspace > wwin->frame->workspace) {
 171                         break;
 172                 }
 173         }
 174
 175         return idx;
 176 }
 177
 178 /*
 179  * Update switch menu
 180  */
 181 void UpdateSwitchMenu(WScreen * scr, WWindow * wwin, int action)
 182 {
 183         WMenu *switchmenu = scr->switch_menu;
 184         WMenuEntry *entry;
 185         char title[MAX_MENU_TEXT_LENGTH + 6];
 186         int len = sizeof(title);
 187         int i;
 188         int checkVisibility = 0;
 189
 190         if (!wwin->screen_ptr->switch_menu)
 191                 return;
 192         /*
 193          *  This menu is updated under the following conditions:
 194          *
 195          *    1.  When a window is created.
 196          *    2.  When a window is destroyed.
 197          *
 198          *    3.  When a window changes it's title.
 199          *    4.  When a window changes its workspace.
 200          */
 201         if (action == ACTION_ADD) {
 202                 char *t;
 203                 int idx;
 204
 205                 if (wwin->flags.internal_window || WFLAGP(wwin, skip_window_list) || IS_GNUSTEP_MENU(wwin)) {
 206                         return;
 207                 }
 208
 209                 if (wwin->frame->title)
 210                         snprintf(title, len, "%s", wwin->frame->title);
 211                 else
 212                         snprintf(title, len, "%s", DEF_WINDOW_TITLE);
 213                 t = ShrinkString(scr->menu_entry_font, title, MAX_WINDOWLIST_WIDTH);
 214
 215                 if (IS_OMNIPRESENT(wwin))
 216                         idx = -1;
 217                 else {
 218                         idx = menuIndexForWindow(switchmenu, wwin, -1);
 219                 }
 220
 221                 entry = wMenuInsertCallback(switchmenu, idx, t, focusWindow, wwin);
 222                 wfree(t);
 223
 224                 entry->flags.indicator = 1;
 225                 entry->rtext = wmalloc(MAX_WORKSPACENAME_WIDTH + 8);
 226                 if (IS_OMNIPRESENT(wwin))
 227                         snprintf(entry->rtext, MAX_WORKSPACENAME_WIDTH, "[*]");
 228                 else
 229                         snprintf(entry->rtext, MAX_WORKSPACENAME_WIDTH, "[%s]",
 230                                  scr->workspaces[wwin->frame->workspace]->name);
 231
 232                 if (wwin->flags.hidden) {
 233                         entry->flags.indicator_type = MI_HIDDEN;
 234                         entry->flags.indicator_on = 1;
 235                 } else if (wwin->flags.miniaturized) {
 236                         entry->flags.indicator_type = MI_MINIWINDOW;
 237                         entry->flags.indicator_on = 1;
 238                 } else if (wwin->flags.focused) {
 239                         entry->flags.indicator_type = MI_DIAMOND;
 240                         entry->flags.indicator_on = 1;
 241                 } else if (wwin->flags.shaded) {
 242                         entry->flags.indicator_type = MI_SHADED;
 243                         entry->flags.indicator_on = 1;
 244                 }
 245
 246                 wMenuRealize(switchmenu);
 247                 checkVisibility = 1;
 248         } else {
 249                 char *t;
 250                 for (i = 0; i < switchmenu->entry_no; i++) {
 251                         entry = switchmenu->entries[i];
 252                         /* this is the entry that was changed */
 253                         if (entry->clientdata == wwin) {
 254                                 switch (action) {
 255                                 case ACTION_REMOVE:
 256                                         wMenuRemoveItem(switchmenu, i);
 257                                         wMenuRealize(switchmenu);
 258                                         checkVisibility = 1;
 259                                         break;
 260
 261                                 case ACTION_CHANGE:
 262                                         if (entry->text)
 263                                                 wfree(entry->text);
 264
 265                                         if (wwin->frame->title)
 266                                                 snprintf(title, MAX_MENU_TEXT_LENGTH, "%s", wwin->frame->title);
 267                                         else
 268                                                 snprintf(title, MAX_MENU_TEXT_LENGTH, "%s", DEF_WINDOW_TITLE);
 269
 270                                         t = ShrinkString(scr->menu_entry_font, title, MAX_WINDOWLIST_WIDTH);
 271                                         entry->text = t;
 272
 273                                         wMenuRealize(switchmenu);
 274                                         checkVisibility = 1;
 275                                         break;
 276
 277                                 case ACTION_CHANGE_WORKSPACE:
 278                                         if (entry->rtext) {
 279                                                 int idx = -1;
 280                                                 char *t, *rt;
 281                                                 int it, ion;
 282
 283                                                 if (IS_OMNIPRESENT(wwin)) {
 284                                                         snprintf(entry->rtext, MAX_WORKSPACENAME_WIDTH, "[*]");
 285                                                 } else {
 286                                                         snprintf(entry->rtext, MAX_WORKSPACENAME_WIDTH,
 287                                                                  "[%s]",
 288                                                                  scr->workspaces[wwin->frame->workspace]->name);
 289                                                 }
 290
 291                                                 rt = entry->rtext;
 292                                                 entry->rtext = NULL;
 293                                                 t = entry->text;
 294                                                 entry->text = NULL;
 295
 296                                                 it = entry->flags.indicator_type;
 297                                                 ion = entry->flags.indicator_on;
 298
 299                                                 if (!IS_OMNIPRESENT(wwin) && idx < 0) {
 300                                                         idx = menuIndexForWindow(switchmenu, wwin, i);
 301                                                 }
 302
 303                                                 wMenuRemoveItem(switchmenu, i);
 304
 305                                                 entry = wMenuInsertCallback(switchmenu, idx, t, focusWindow, wwin);
 306                                                 wfree(t);
 307                                                 entry->rtext = rt;
 308                                                 entry->flags.indicator = 1;
 309                                                 entry->flags.indicator_type = it;
 310                                                 entry->flags.indicator_on = ion;
 311                                         }
 312                                         wMenuRealize(switchmenu);
 313                                         checkVisibility = 1;
 314                                         break;
 315
 316                                 case ACTION_CHANGE_STATE:
 317                                         if (wwin->flags.hidden) {
 318                                                 entry->flags.indicator_type = MI_HIDDEN;
 319                                                 entry->flags.indicator_on = 1;
 320                                         } else if (wwin->flags.miniaturized) {
 321                                                 entry->flags.indicator_type = MI_MINIWINDOW;
 322                                                 entry->flags.indicator_on = 1;
 323                                         } else if (wwin->flags.shaded && !wwin->flags.focused) {
 324                                                 entry->flags.indicator_type = MI_SHADED;
 325                                                 entry->flags.indicator_on = 1;
 326                                         } else {
 327                                                 entry->flags.indicator_on = wwin->flags.focused;
 328                                                 entry->flags.indicator_type = MI_DIAMOND;
 329                                         }
 330                                         break;
 331                                 }
 332                                 break;
 333                         }
 334                 }
 335         }
 336         if (checkVisibility) {
 337                 int tmp;
 338
 339                 tmp = switchmenu->frame->top_width + 5;
 340                 /* if menu got unreachable, bring it to a visible place */
 341                 if (switchmenu->frame_x < tmp - (int)switchmenu->frame->core->width) {
 342                         wMenuMove(switchmenu, tmp - (int)switchmenu->frame->core->width,
 343                                   switchmenu->frame_y, False);
 344                 }
 345         }
 346         wMenuPaint(switchmenu);
 347 }
 348
 349 static void UpdateSwitchMenuWorkspace(WScreen *scr, int workspace)
 350 {
 351         WMenu *menu = scr->switch_menu;
 352         int i;
 353         WWindow *wwin;
 354
 355         if (!menu)
 356                 return;
 357
 358         for (i = 0; i < menu->entry_no; i++) {
 359                 wwin = (WWindow *) menu->entries[i]->clientdata;
 360
 361                 if (wwin->frame->workspace == workspace && !IS_OMNIPRESENT(wwin)) {
 362                         if (IS_OMNIPRESENT(wwin))
 363                                 snprintf(menu->entries[i]->rtext, MAX_WORKSPACENAME_WIDTH, "[*]");
 364                         else
 365                                 snprintf(menu->entries[i]->rtext, MAX_WORKSPACENAME_WIDTH, "[%s]",
 366                                          scr->workspaces[wwin->frame->workspace]->name);
 367                         menu->flags.realized = 0;
 368                 }
 369         }
 370         if (!menu->flags.realized)
 371                 wMenuRealize(menu);
 372 }
 373
 374 static void observer(void *self, WMNotification * notif)
 375 {
 376         WWindow *wwin = (WWindow *) WMGetNotificationObject(notif);
 377         const char *name = WMGetNotificationName(notif);
 378         void *data = WMGetNotificationClientData(notif);
 379
 380         /* Parameter not used, but tell the compiler that it is ok */
 381         (void) self;
 382
 383         if (!wwin)
 384                 return;
 385
 386         if (strcmp(name, WMNManaged) == 0)
 387                 UpdateSwitchMenu(wwin->screen_ptr, wwin, ACTION_ADD);
 388         else if (strcmp(name, WMNUnmanaged) == 0)
 389                 UpdateSwitchMenu(wwin->screen_ptr, wwin, ACTION_REMOVE);
 390         else if (strcmp(name, WMNChangedWorkspace) == 0)
 391                 UpdateSwitchMenu(wwin->screen_ptr, wwin, ACTION_CHANGE_WORKSPACE);
 392         else if (strcmp(name, WMNChangedFocus) == 0)
 393                 UpdateSwitchMenu(wwin->screen_ptr, wwin, ACTION_CHANGE_STATE);
 394         else if (strcmp(name, WMNChangedName) == 0)
 395                 UpdateSwitchMenu(wwin->screen_ptr, wwin, ACTION_CHANGE);
 396         else if (strcmp(name, WMNChangedState) == 0) {
 397                 if (strcmp((char *)data, "omnipresent") == 0) {
 398                         UpdateSwitchMenu(wwin->screen_ptr, wwin, ACTION_CHANGE_WORKSPACE);
 399                 } else {
 400                         UpdateSwitchMenu(wwin->screen_ptr, wwin, ACTION_CHANGE_STATE);
 401                 }
 402         }
 403 }
 404
 405 static void wsobserver(void *self, WMNotification * notif)
 406 {
 407         WScreen *scr = (WScreen *) WMGetNotificationObject(notif);
 408         const char *name = WMGetNotificationName(notif);
 409         void *data = WMGetNotificationClientData(notif);
 410
 411         /* Parameter not used, but tell the compiler that it is ok */
 412         (void) self;
 413
 414         if (strcmp(name, WMNWorkspaceNameChanged) == 0) {
 415                 UpdateSwitchMenuWorkspace(scr, (uintptr_t)data);
 416         } else if (strcmp(name, WMNWorkspaceChanged) == 0) {
 417
 418         }
 419 }